Exam 13: The Respiratory System
Exam 1: The Human Body: An Orientation128 Questions
Exam 2: Basic Chemistry118 Questions
Exam 3: Cells and Tissues142 Questions
Exam 4: Skin and Body Membranes108 Questions
Exam 5: The Skeletal System124 Questions
Exam 6: The Muscular System129 Questions
Exam 7: The Nervous System161 Questions
Exam 8: Special Senses128 Questions
Exam 9: The Endocrine System149 Questions
Exam 10: Blood116 Questions
Exam 11: The Cardiovascular System160 Questions
Exam 12: The Lymphatic System and Body Defenses135 Questions
Exam 13: The Respiratory System150 Questions
Exam 14: The Digestive System and Body Metabolism162 Questions
Exam 15: The Urinary System138 Questions
Exam 16: The Reproductive System169 Questions
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Air from the nasal cavity enters the superior portion of the pharynx called the ________.
Free
(Multiple Choice)
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Correct Answer:
A
Describe the changes in pressure and volume that lead to inspiration.
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(Essay)
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Correct Answer:
The diaphragm and external intercostal muscles contract upon stimulation by the phrenic and intercostal nerves. In doing so, the intrapulmonary volume (volume inside the lungs) increases. Gases within the lungs spread out to fill the larger space, decreasing the intrapulmonary pressure. Air follows the pressure gradient into the body until intrapulmonary pressure equals atmospheric pressure, and inspiration (inhalation) occurs. Air rushes into the lungs.
Exchange of both oxygen and carbon dioxide through the respiratory membrane occurs by ________.
Free
(Multiple Choice)
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Correct Answer:
B
The respiratory conducting passageways perform all of the following functions EXCEPT ________.
(Multiple Choice)
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Using Figure 13.1, identify the following:
-The trachea is indicated by ________.
(Multiple Choice)
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Using Figure 13.1, identify the following:
-The larynx is indicated by ________.
(Multiple Choice)
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Match the following definitions with their associated respiratory volume or capacity:
-Sum total of tidal volume, inspiratory reserve volume, and expiratory reserve volume
(Multiple Choice)
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Using Figure 13.1, identify the following:
-The diaphragm muscle is indicated by ________.
(Multiple Choice)
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According to the laws of diffusion, movement of a respiratory gas occurs toward the area of higher concentration of that particular respiratory gas.
(True/False)
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Laughing and crying similarly involve inspiration followed by a release of air in a number of short expirations.
(True/False)
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The anterior portion of the palate that is supported by bone is called the ________.
(Multiple Choice)
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The pleural membranes produce a slippery fluid known as serous fluid.
(True/False)
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Expiration occurs when the thoracic and intrapulmonary volumes decrease and the intrapulmonary pressure increases.
(True/False)
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In order to return acidic blood pH to normal, breathing becomes deeper and more rapid, a phenomenon known as ________.
(Multiple Choice)
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The nasal cavity is separated from the oral cavity by ________.
(Multiple Choice)
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The regulation of the activity of the breathing muscles, the diaphragm and external intercostals, is controlled by nerve impulses transmitted from the brain via the ________ and ________ nerves.
(Multiple Choice)
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Vibration due to exhaled air that results in speech is a function of the ________.
(Multiple Choice)
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Smoking destroys cilia in the respiratory passageways, such as the trachea. Which of the following is a likely consequence of damaged cilia?
(Multiple Choice)
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